This estrogen hormone comes from female who take contraceptive pill while estrogen mimickers could be nonylphenols, come from paints, rubber, cosmetics and plastics. Research shows 80 percent of the rivers in US in 30 states contain these hormones.
Men who consume the water may develop man boobs or gynecomastia later. As Alan Kingdon, M.D., a cosmetic surgeon and medical director of the Cosmetic Surgery Clinic in London said “I’m sure that estrogen in the food cycle must be a factor.”
As for food, quite common we hear about the usage of hormone to boost the production of cattle. This hormone is then passed to humans when they consume the meat and may cause man boobs.